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Ternary Weakly Amenable C*-algebras and JB*-triples
C*-algebras and JB*-triples Operator Algebras
2012/6/19
A well known result of Haagerup from 1983 states that every C*-algebra A is weakly amenable, that is, every (associative) derivation from A into its dual is inner. A Banach algebra B is said to be ter...
Examples of groups which are not weakly amenable
weak amenability infinite amenable normal subgroup
2011/1/17
We prove that weak amenability of a locally compact group imposes a strong condition on its amenable closed normal subgroups. This extends non weak amenability results of Haagerup (1988) and Ozawa–Pop...
A non-weakly amenable Banach algebra whose bidual is weakly amenable
Banach algebra weakly amenable
2010/11/9
We answer, in the negative, the question: Does a Banach algebra inherit weak amenability from its bidual?, which was open since 1996